monosemy vs pellucidity

monosemy and pellucidity both are nouns.

Word	Noun	Adjective	Verb	Adverb
monosemy	Yes	No	No	No
pellucidity	Yes	No	No	No

As nouns, pellucidity is a hypernym of monosemy; that is, pellucidity is a word with a broader meaning than monosemy:

monosemy: having a single meaning (absence of ambiguity) usually of individual words or phrases
pellucidity: free from obscurity and easy to understand; the comprehensibility of clear expression

Other hypernyms of monosemy include clarity, clearness, limpidity, lucidity, lucidness.

monosemy (noun)	pellucidity (noun)
having a single meaning (absence of ambiguity) usually of individual words or phrases	passing light without diffusion or distortion
	free from obscurity and easy to understand; the comprehensibility of clear expression